The Flanders Auto Roll Series HNSG14 Unit Ventilator Automatic Roll Filter is a 14" wide x 50' long air filter media roll constructed of spun glass media. The HNSG14 roll offers a high arrestance and dust holding capacity making it ideal as a pre-filter for high efficiency filters. It is designed for use with American Air Filter Herman Nelson XOA 4000-03 SG Ceiling Units.
Media with high arrestance are able to remove high quantities of dust from the air.
High Dust Holding Capacity
A high dust holding capacity extends the service life of your filter by allowing it to retain high quantities of dust before replacement.